.carrousel-bg {
  width: 1280px;
  height: 720px;
  box-sizing: border-box;
  position: relative;
  top: 0;
  left: 0;
  overflow: hidden;
  display: table-cell;
  vertical-align: middle;
  text-align: center;
}

.model {
   width: 80%; 
  height: 90%;
   margin-top: 2%; 
  display: none;
  /* overflow: hidden; */
}

.model>img {
  height: 100%;
  width: 100%;
}

.active {
  display: inline-block;
}

.btns {
  width: 50px;
  height: 80px;
  position: absolute;
  line-height: 80px;
  text-align: center;
  font-weight: bold;
  font-size: 50px;
  color: #999;
  top: 320px;
  display: none;
}

.btn-left {
  left: 0;
}

.btn-right {
  right: 0;
}